R&S ZVB - Page 369

R&S
®
ZVA / R&S
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ZVB / R&S
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ZVT GUI Reference
Channel Menu
Operating Manual 1145.1084.12 – 30 354
Control (ALC). ALC may only be performed if Ext. Dev. is selected as Two Tone Output
(otherwise the reference receiver of the upper tone port is not calibrated). Please note that Ext.
Dev. may be selected as Two Tone Output even if the actual setup corresponds to Port 1 as Two
Tone Output.
 Config Ext Generators... opens the System Configuration – External Generators dialog for adding
and configuring external generators.
 Tone Distance defines the frequency difference between the upper and the lower tone. The tone
distance is kept constant across the entire sweep.
 Use Internal Combiner activates the internal combiner
- for network analyzers R&S ZVA connected to an Extension Unit R&S ZVAX24 or R&S ZVAX-
TRM with installed combiner option
- for network analyzers R&S ZVT connected to an Extension Unit R&S ZVAX-TRM with installed
combiner option
- for network analyzers R&S ZVT20 that are equipped with option R&S ZVT20-B11
The internal combiner requires the lower tone from port 1 and the upper tone from port 3.
 Define Mixer Measurement... opens the configuration dialog for a scalar mixer measurement, to
be performed in parallel to the intermodulation measurement. Use this dialog if you want to
determine the intermodulation distortion of a mixer which receives the two-tone signal at its RF
input. In this dialog please select the Lower Tone port of the intermodulation measurement as RF
port of the mixer measurement and the receive port of the intermodulation measurement as IF
port of the mixer measurement. The LO signal must be provided by an additional source.
 Set Frequencies and Powers... opens a dialog where you can define the sweep ranges.
 If Prepare Enhanced Wave Corr is selected, the analyzer prepares itself for an enhanced wave
correction, i.e. the power calibration wizard for the intermodulation measurement (see section
Intermodulation Distortion Measurement Power Calibration) will perform a source power
calibration at the receiving port. Otherwise it will perform a receiver power calibration at that port.
The enhanced wave correction will not work properly if you configure arbitrary frequency
converting settings in the Port Configuration.
 The Receiver – Measured Wave Quantities section adjusts the intermodulation measurement to
the test setup; see Intermodulation measurement, test setups. At DUT Input shows the wave
quantities which are fed to the DUT input, depending on the source settings (Lower Tone, Upper
Tone, Two Tone Output). Wave quantities from external generators are not listed. At DUT Output
selects the receive port for the signal from the output of the DUT.
 Meas BW and Selectivity define the bandwidth and selectivity of the IF filter; see section Meas.
Bandwidth.
 Receiver Attenuation adjusts the attenuation of the wave received from the DUT output as
described in section Step Attenuators.
 Prepare Measurement of IM Order selects the order(s) of the intermodulation products which are
to be prepared for measurement. This setting affects the frequency range for intermodulation
power calibration and system error correction; it does not select which intermodulation products
are be measured, which has to be set up separately via the Trace – Measure – Intermod
Distortion Quantities submenu. Please note that each order requires an additional measurement
at a different frequency, therefore the measurement time increases with the number of selected
orders. If a higher-order IM is selected, its frequency may exceed the upper or lower frequency
limit of the analyzer. Use the Fit Frequency Range button in the Set Frequencies and Powers
dialog to restrict the sweep range as required.
Remote control:
[SENSe<Ch>:]FREQuency:IMODulation:LTONe